What you'll get when you download DiveOne
An honest look at DiveOne — what works today, what's coming next, and what we'll never pretend to be.
DiveOne is a focused dive tracking and logbook companion for Apple Watch Ultra. Before you download, here's exactly what to expect.
What works today
Real-time depth tracking
1 Hz depth sampling from the hardware depth gauge, displayed on your wrist during the dive.
Water temperature logging
Continuous temperature recording throughout your dive using the Watch's built-in sensor.
Automatic dive journal
Every dive is logged automatically — depth profile, duration, temperature, GPS entry point.
Three dive modes
Scuba, freedive, and snorkel — each with mode-specific tracking and display.
Safety stop timer
Configurable safety stop countdown with haptic alerts at 5m ascent.
Full offline operation
Records dives offline; syncs to iPhone after surfacing. Works on a boat with no signal during the dive.
What's coming next
These features are planned but not available yet. We don't ship until they work correctly.
- CSV export from the iPhone companion app
- Dive history search and filtering
- HealthKit integration (optional)
- Detailed post-dive analytics on iPhone
- Watch face complications for quick-start
What DiveOne will never be
- A certified dive computer — we don't calculate decompression
- A replacement for your BCD, regulator, or primary safety gear
- A social network or community platform
- A tool that uploads your data without your explicit action
What you'll see on your wrist
Active dive
Depth, time, temperature — the essentials, visible at a glance underwater.
Surface interval
Time since last dive, GPS coordinates, session summary.
Dive log
Complete dive history with depth profiles and key metrics.
What you need
- Apple Watch Ultra or Ultra 2
- iPhone with iOS 17 or later
- watchOS 10 or later
- Account optional for on-device tracking during beta
Ready to try?
DiveOne is in beta. Join the waitlist and we'll notify you when it's available.
Questions? Chat on WhatsApp
Reserve your place before launch.
Early access starts with your account and progress updates. The personal cabinet is live.